Is it the giant gold hashtag on-stage?
No.
Is it the fact that the guy needs three keyboards for a two-song set?
No.
Is the fact that Miley Cyrus decided to perform in her underwear?
No.
Is it simply that will.i.am is there?
Also no.
It's the fact that 99 percent of the audience can't go to a concert without recording it on their phones. WTF, people?!
If that's too much of a old man "get off my lawn" kind of answer, I'm sorry — sound off in the comments if you must — but having your sight-line ruined by a sea of tiny screens is the worst.
Cheers to the girl with all bracelets in the neon hoodie — keep rockin'.